25 year guarantee. Read about the terms in the guarantee brochure. Sink in stainless steel, a hygienic, strong and durable material that&apos;s easy to keep clean. The sink has no pre-drilled holes so you can choose where to place the tap. A smaller extra bowl makes it possible for example to discard leftover beverages, while using the larger bowl for washing and rinsing dishes. To make a hole for the kitchen mixer tap FIXA 2-piece tool set can be recommended; sold separately. http://www.ikea.com/gb/en/images/products/boholmen-single-bowl-inset-sink__0121414_PE278115_S4.JPGBOHOLMEN Single-bowl inset sink, stainless steelhttp://www.ikea.com/gb/en/catalog/products/S19896386/198.963.86IKEA£70